Skip to main content
V
vobrazovka
Known Participant
January 27, 2026

new unmult effect does banding and color shift if source have some transparency

  • January 27, 2026
  • 3 replies
  • 199 views

In AE 2026 is the new unmult effect which works well until you apply it to video which have transparency (alpha channel). Then the result is unacceptable with strong banding and color shift. 
If I compare result to other unmult effects or workarounds, the result of native new effect is totally different while other methods/plugins does well and practicaly the same output. I can provide the whole project with one frame from the footage, or the whole animation,

Sample image attached.
I tried change bit depth and colorspace but that does not change anything.

 

    3 replies

    David.Arbor
    Community Manager
    David.ArborCommunity Manager
    Community Manager
    February 11, 2026

    Hi ​@vobrazovka, 

    Thank you again for reporting this! We found and fixed the issue on footage with partially transparent alphas. You can grab the latest public beta of AE 26.2 from the Creative Cloud desktop app to test out Unmult v1.1.

     

    Thanks again!

    -David, After Effects Engineering Team

      David.Arbor
      Community Manager
      David.ArborCommunity Manager
      Community Manager
      January 27, 2026

      Hi ​@vobrazovka, it’s not a particularly common scenario to apply Unmult to a clip with partial transparency already, but it should still work.

      1. Where did this footage come from?
        1. I created an sample clip with partial transparency as ProRes 4444 and Unmult handled it without any banding.
      2. If you right-click the clip in the Project panel and choose Interpret Footage > Main > and select “Straight - Unmatted,” does anything change?
      3. As Nishu asked, could you please share this clip with us?

      -David, After Effects Engineering Team

      V
      vobrazovkaAuthor
      Known Participant
      January 30, 2026

      I can share. ofcourse, I will upload the file to onedrive and send you the link.

      nishu_kush
      nishu_kush
      Legend
      January 27, 2026

      Hi vobrazovka,

       

      Thanks for reaching out. Do you mind sharing the media and the project file so that I can reproduce the issue on my end?

      Looking forward to your response.

       

      Thanks,

      Nishu

      V
      vobrazovkaAuthor
      Known Participant
      January 30, 2026

      Hi, here is shared folder with project and footage. Let me know if it is work pls.
      unmult!--startfragment>

      David.Arbor
      Community Manager
      David.ArborCommunity Manager
      Community Manager
      February 2, 2026

      Hi ​@vobrazovka,

       

      Thank you for sharing your project and footage! I see the issue, and we’re taking a look at it.

       

      -David, After Effects Engineering Team

      Terms & ConditionsAccessibility statement
      Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices